Thanks, lifenexus. Just did that edit; it'll be interesting ot see if/how much it helps.

I always get a stutter when I leave home and get out of WLAN range. But the worst was when I was moving a bunch of files onto the phone over WLAN via sshfs (not the most efficient approach, but very handy for my needs). The music first stuttered, then stopped completely, playing one fractional-second snippet perhaps every minute. The misbehavior lasted until about 5-10 minutes AFTER the download finished. Wow! I'll never do that again.